https://www.nhs.uk/conditions/chronic-fatigue-syndrome-cfs/ > Suggested causes or triggers for ME/CFS include: > viral infections, such as glandular fever > bacterial infections, such as pneumonia > problems with the immune system > a hormone imbalance > your genes – ME/CFS seems to be more common in some families
I have a friend who got CFS out of nowhere (shortly before the 2 years to flatten the curve started, no COVID involved) and it's bad, there is no cure and it's incredibly disruptive. At the same time, it's hard for people to take you seriously and not just call you lazy.
Hopefully this study goes somewhere and we'll find a cure for CFS.